Idaho Department of Fish and Game officials say a 41-year-old Pocatello man has shattered a state record by catching a 34.74-pound rainbow trout.

Mark Adams, a Union Pacific Railroad locomotive engineer, caught the lunker in American Falls Reservoir Monday morning. It took Mark 15 minutes to bring in the trout, which broke old state record by 14.72 pounds.

Mark told the Idaho State Journal that he and his fishing buddy first thought the fish was a carp because it didn't have a lot of color. Mark called another friend who advised him to get his catch to a certified scale.

Regional Fisheries Biologist David Teuscher he's checking national records to see how the' catch measures up.

Montana records show a 33.1-pound rainbow was caught in the Kootenai River in 1997.